I think you did a good job, but to me, the skin looks a little bit flat in terms of highlights, and a bit fake with the extreme smoothing. I would try and bring back some of the original texture to her skin, either by fading out your smoothing layer, or some other way.

Very nice start. The skin texture is probably the hardest part of retouching. I think your retouched version also has a red cast. I don't know if this was intentional or not.

I only do this as a hobby so my version looks good to me but may not be up to professional standards. Changes were
- duplicated background layer with overlay blending mode (25% opacity)
- degrunge skin with opacity of 30%
- burn tool for eyebrows
- dodge tool to bring out highlight in hair
- increased saturation of lip color (red channel only)
- brightened teeth
- lightened whites of eyes
- increased saturation of green part of eyes.

For a first time retouch I think you did very well. I agree with Dropbear in that it looks a little too blurred. Shel has almost perfect skin and there is no need to do any blurring on it at all. The healing brush or clone tool should suffice for this one. But if you are using a blur of some sort then take down the opacity of that layer to bring back some of the texture into the skin. I had a quick go at this one just to give you a different angle on it. It helps to have a lot of versions because that way you can pick the parts you like from each one and construct your own. The model is damn near perfect and hardly required any retouching at all. All that I did, apart from removing a few blemishes, was straighten that skew tooth, fix up the eyebrow and adjust the levels.